Example usage for com.google.gson TypeAdapter TypeAdapter

Introduction

In this page you can find the example usage for com.google.gson TypeAdapter TypeAdapter.

Prototype

TypeAdapter

Source Link

Usage

From source file:org.lanternpowered.server.script.json.ObjectTypeAdapterFactory.java

License:MIT License

@Nullable
@Override/*from   www . j a  va 2s .co m*/
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
    if (!type.isAssignableFrom(this.typeToken)) {
        return null;
    }
    final TypeAdapter<JsonElement> jsonElementTypeAdapter = gson.getAdapter(JsonElement.class);
    final TypeToken theTypeToken = type;
    return new TypeAdapter<T>() {

        @SuppressWarnings("unchecked")
        @Override
        public void write(JsonWriter out, T value) throws IOException {
            final JsonElement element = serialize((TypeToken<V>) theTypeToken, (V) value, gson);
            jsonElementTypeAdapter.write(out, element);
        }

        @SuppressWarnings("unchecked")
        @Override
        public T read(JsonReader in) throws IOException {
            final JsonElement element = jsonElementTypeAdapter.read(in);
            return (T) deserialize(theTypeToken, element, gson);
        }
    };
}

---

From source file:org.mule.runtime.extension.internal.persistence.metadata.FailureCodeTypeAdapterFactory.java

License:Open Source License

@Override
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
    Class<T> rawType = (Class<T>) type.getRawType();
    if (rawType.equals(FailureCode.class))
        return (TypeAdapter<T>) new TypeAdapter<FailureCode>() {

            @Override/*from   w w  w.  j a  va2  s . c  o  m*/
            public void write(JsonWriter out, FailureCode value) throws IOException {
                out.value(value.getName());
            }

            @Override
            public FailureCode read(JsonReader in) throws IOException {
                return new FailureCode(in.nextString());
            }
        };
    return null;
}

---

From source file:org.objectpocket.gson.CustomTypeAdapterFactory.java

License:Apache License

@Override
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {

    TypeAdapter<T> delegate = gson.getDelegateAdapter(this, type);

    // @Entity// w w  w. j  a v a 2s  .  c o m
    if (type.getRawType().getAnnotation(Entity.class) != null) {
        return new TypeAdapter<T>() {

            // SERIALIZE
            public void write(JsonWriter out, T obj) throws IOException {
                if (obj != null) {
                    String id = objectPocket.getIdForObject(obj);
                    // normalize
                    if (!objectPocket.isSerializeAsRoot(obj)) {
                        gson.toJson(new ProxyOut(obj.getClass().getTypeName(), id), ProxyOut.class, out);
                        return;
                    } else {
                        objectPocket.setSerializeAsRoot(obj, false);
                    }
                }
                // default serialization
                delegate.write(out, obj);
            };

            // DESERIALIZE
            @SuppressWarnings("unchecked")
            @Override
            public T read(JsonReader in) throws IOException {
                if (in.getPath().length() > 2) {
                    in.beginObject();
                    in.nextName();
                    StringBuilder sb = new StringBuilder(in.nextString());
                    String id = sb.substring(0, sb.indexOf("@"));
                    in.endObject();
                    T obj = null;
                    try {
                        obj = (T) ReflectionUtil.instantiateDefaultConstructor(type.getRawType());
                    } catch (InstantiationException | IllegalAccessException | ClassNotFoundException
                            | NoSuchMethodException | InvocationTargetException e) {
                        throw new IOException("Could not instantiate class " + type.getRawType().getName()
                                + "\n" + "Might be that the class has no default constructor!", e);
                    }
                    objectPocket.addIdFromReadObject(obj, id);
                    return obj;
                } else {
                    T obj = delegate.read(in);
                    return obj;
                }
            }
        };
    }
    // All other
    else {
        return delegate;
    }
}

---

From source file:org.openhab.binding.mqtt.homeassistant.internal.ChannelConfigurationTypeAdapterFactory.java

License:Open Source License

/**
 * Handle {@link BaseChannelConfiguration}
 *
 * @param gson/*from   w ww  .  j  a  v a 2 s  . com*/
 * @param type
 * @return
 */
private <T> TypeAdapter<T> createHAConfig(Gson gson, TypeToken<T> type) {
    /* The delegate is the 'default' adapter */
    final TypeAdapter<T> delegate = gson.getDelegateAdapter(this, type);

    return new TypeAdapter<T>() {
        @Override
        public T read(@Nullable JsonReader in) throws IOException {
            if (in == null) {
                return null;
            }
            /* read the object using the default adapter, but translate the names in the reader */
            T result = delegate.read(MappingJsonReader.getConfigMapper(in));
            /* do the '~' expansion afterwards */
            expandTidleInTopics(BaseChannelConfiguration.class.cast(result));
            return result;
        }

        @Override
        public void write(@Nullable JsonWriter out, T value) throws IOException {
            delegate.write(out, value);
        }
    };
}

---

From source file:org.openhab.binding.mqtt.homeassistant.internal.ChannelConfigurationTypeAdapterFactory.java

License:Open Source License

private <T> TypeAdapter<T> createHADevice(Gson gson, TypeToken<T> type) {
    /* The delegate is the 'default' adapter */
    final TypeAdapter<T> delegate = gson.getDelegateAdapter(this, type);

    return new TypeAdapter<T>() {
        @Override/*  www  .  j a v  a2  s  . co  m*/
        public T read(@Nullable JsonReader in) throws IOException {
            if (in == null) {
                return null;
            }
            /* read the object using the default adapter, but translate the names in the reader */
            T result = delegate.read(MappingJsonReader.getDeviceMapper(in));
            return result;
        }

        @Override
        public void write(@Nullable JsonWriter out, T value) throws IOException {
            delegate.write(out, value);
        }
    };
}

---

From source file:org.smartparam.manager.json.vendor.gson.LevelKeySerializer.java

License:Apache License

@Override
@SuppressWarnings("unchecked")
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
    if (LevelKey.class.isAssignableFrom(type.getRawType())) {
        return (TypeAdapter) new TypeAdapter<LevelKey>() {

            @Override/*from ww  w. jav  a2 s  . c om*/
            public void write(JsonWriter out, LevelKey value) throws IOException {
                out.value(value.value());
            }

            @Override
            public LevelKey read(JsonReader in) throws IOException {
                return new SimpleLevelKey(in.nextString());
            }
        };
    }
    return null;
}

---

From source file:org.smartparam.manager.json.vendor.gson.ParameterDiffSerializer.java

License:Apache License

@Override
@SuppressWarnings("unchecked")
public <T> TypeAdapter<T> create(final Gson gson, TypeToken<T> type) {
    if (ParameterDiff.class.isAssignableFrom(type.getRawType())) {
        return (TypeAdapter) new TypeAdapter<ParameterDiff>() {

            @Override/*from  w w  w.ja v  a 2 s . c o m*/
            public void write(JsonWriter out, ParameterDiff value) throws IOException {
                out.beginObject().name("previous").value(gson.toJson(value.previous())).name("current")
                        .value(gson.toJson(value.current())).endObject();
            }

            @Override
            public ParameterDiff read(JsonReader in) throws IOException {
                in.beginObject();
                in.nextName();
                SimpleParameter previous = gson.fromJson(in, SimpleParameter.class);
                in.nextName();
                SimpleParameter current = gson.fromJson(in, SimpleParameter.class);
                in.endObject();

                return new ParameterDiff(previous, current);
            }
        };
    }
    return null;
}

---

From source file:org.smartparam.manager.json.vendor.gson.ParameterEntryDiffSerializer.java

License:Apache License

@Override
@SuppressWarnings("unchecked")
public <T> TypeAdapter<T> create(final Gson gson, TypeToken<T> type) {
    if (ParameterEntryDiff.class.isAssignableFrom(type.getRawType())) {
        return (TypeAdapter) new TypeAdapter<ParameterEntryDiff>() {

            @Override/* ww  w  . j a v  a  2  s. c o  m*/
            public void write(JsonWriter out, ParameterEntryDiff value) throws IOException {
                out.beginObject().name("previous").value(gson.toJson(value.previous())).name("current")
                        .value(gson.toJson(value.current())).endObject();
            }

            @Override
            public ParameterEntryDiff read(JsonReader in) throws IOException {
                in.beginObject();
                in.nextName();
                SimpleParameterEntry previous = gson.fromJson(in, SimpleParameterEntry.class);
                in.nextName();
                SimpleParameterEntry current = gson.fromJson(in, SimpleParameterEntry.class);
                in.endObject();

                return new ParameterEntryDiff(previous, current);
            }
        };
    }
    return null;
}

---

From source file:org.smartparam.manager.json.vendor.gson.ParameterEntryKeySerializer.java

License:Apache License

@Override
@SuppressWarnings("unchecked")
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
    if (ParameterEntryKey.class.isAssignableFrom(type.getRawType())) {
        return (TypeAdapter) new TypeAdapter<ParameterEntryKey>() {

            @Override//  www  .j a va  2s .  c om
            public void write(JsonWriter out, ParameterEntryKey value) throws IOException {
                out.value(value.value());
            }

            @Override
            public ParameterEntryKey read(JsonReader in) throws IOException {
                return new SimpleParameterEntryKey(in.nextString());
            }
        };
    }
    return null;
}

---

From source file:org.syphr.lametrictime.api.common.impl.typeadapters.imported.RuntimeTypeAdapterFactory.java

License:Apache License

public <R> TypeAdapter<R> create(Gson gson, TypeToken<R> type) {
    if (type.getRawType() != baseType) {
        return null;
    }//from   w  w w .j  a  va 2  s . co m

    final Map<String, TypeAdapter<?>> labelToDelegate = new LinkedHashMap<String, TypeAdapter<?>>();
    final Map<Class<?>, TypeAdapter<?>> subtypeToDelegate = new LinkedHashMap<Class<?>, TypeAdapter<?>>();
    for (Map.Entry<String, Class<?>> entry : labelToSubtype.entrySet()) {
        TypeAdapter<?> delegate = gson.getDelegateAdapter(this, TypeToken.get(entry.getValue()));
        labelToDelegate.put(entry.getKey(), delegate);
        subtypeToDelegate.put(entry.getValue(), delegate);
    }

    return new TypeAdapter<R>() {
        @Override
        public R read(JsonReader in) throws IOException {
            JsonElement jsonElement = RuntimeTypeAdapterFactory.parse(in);
            JsonElement labelJsonElement = jsonElement.getAsJsonObject().remove(typeFieldName);
            if (labelJsonElement == null) {
                throw new JsonParseException("cannot deserialize " + baseType
                        + " because it does not define a field named " + typeFieldName);
            }
            String label = labelJsonElement.getAsString();
            @SuppressWarnings("unchecked") // registration requires that subtype extends T
            TypeAdapter<R> delegate = (TypeAdapter<R>) labelToDelegate.get(label);
            if (delegate == null) {
                throw new JsonParseException("cannot deserialize " + baseType + " subtype named " + label
                        + "; did you forget to register a subtype?");
            }
            return delegate.fromJsonTree(jsonElement);
        }

        @Override
        public void write(JsonWriter out, R value) throws IOException {
            Class<?> srcType = value.getClass();
            String label = subtypeToLabel.get(srcType);
            @SuppressWarnings("unchecked") // registration requires that subtype extends T
            TypeAdapter<R> delegate = (TypeAdapter<R>) subtypeToDelegate.get(srcType);
            if (delegate == null) {
                throw new JsonParseException(
                        "cannot serialize " + srcType.getName() + "; did you forget to register a subtype?");
            }
            JsonObject jsonObject = delegate.toJsonTree(value).getAsJsonObject();
            if (jsonObject.has(typeFieldName)) {
                throw new JsonParseException("cannot serialize " + srcType.getName()
                        + " because it already defines a field named " + typeFieldName);
            }
            JsonObject clone = new JsonObject();
            clone.add(typeFieldName, new JsonPrimitive(label));
            for (Map.Entry<String, JsonElement> e : jsonObject.entrySet()) {
                clone.add(e.getKey(), e.getValue());
            }
            RuntimeTypeAdapterFactory.write(clone, out);
        }
    }.nullSafe();
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• »